Carassius: A Simple Process Model Editor

A Simple Model of the Chromatographic Process

A SIMPLE MODEL FOR r-PROCESS SCATTER AND HALO EVOLUTION

Recent observations of heavy elements produced by rapid neutron capture (r-process) in the halo have shown a striking and unexpected behavior: within a single star, the relative abundances of r-process elements heavier than Eu are the same as the same as those of solar system matter, while across stars with similar metallicity Fe/H, the r/Fe ratio varies over two orders of magnitude. In this pa...

An optimization-simulation model for a simple LNG process

A gradient free optimization-simulationmethod for processesmodelledwith the simulator AspenHYSYS is developed. The tool is based on a Tabu Search (TS) and the Nelder-Mead Downhill Simplex (NMDS) method. The local optima that result from the TS are fine-tuned with NMDS to reduce the required number of simulations. The tool has been applied to find the total refrigerant flow rate, composition and...

Business process Eclipse Editor (BEE)

An important aspect of business process modelling is let nonprofessional users understand business processes, so that they can be involved not only in their understanding but even in their management. This paper introduces a business process editor geared to end users whose prerequisites are very elementary. The editor has been developed by the DIS of University of Naples “Federico II”, in a pa...

NOTES, COMMENTS, AND LETTERS TO THE EDITOR A Simple Model of Equilibrium in Search Procedures*

The paper presents a simple game-theoretic model in which players decide on search procedures for a prize located in one of a set of labeled boxes. The prize is awarded to the player who finds it first. A player can decide on the number of (costly) search units he employs and on the order in which he conducts the search. It is shown that in equilibrium, the players employ an equal number of sea...